Halo 4 U.K. Launch

Halo 4 launched in the U.K. with an aerial lighting performance visible for miles over London. Several other events were held around the city to celebrate the launch of one of the year’s most anticipated video games.

More than half of Americans are worried about the U.S. government's digital spies prying into their emails, texts, search requests and other online information, but few are trying to thwart the surveillance.